app.flatironschool.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:75:97:7e:59:cb:3c:0a:9f:e8:c3:84:5b:54:68:83:73:02 was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=app.flatironschool.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:75:97:7e:59:cb:3c:0a:9f:e8:c3:84:5b:54:68:83:73:02Serial Number (int): 301351264203034591510568006286291316732674
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: d8:16:3f:12:b7:d3:76:c9:e0:97:b4:10:a5:5e:3d:d7:17:03:36:c3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): da:a3:19:65:60:bc:32:ed:ec:15:37:c5:50:3b:1a:e9:32:da:14:01
Fingerprint (sha256): 2d:43:38:de:01:46:ea:96:c9:3a:e0:09:9c:da:2c:8a:9b:ad:55:3b:3e:4f:01:f1:fe:86:b6:21:21:1a:78:dc
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate app.flatironschool.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for app.flatironschool.com
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
app.flatironschool.com
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Certificate
The complete raw certificate details for app.flatironschool.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGYzCCBUugAwIBAgISA3WXflnLPAqf6MOEW1Rog3MCMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA1MjkxNDA1MTlaFw0x OTA4MjcxNDA1MTlaMCExHzAdBgNVBAMTFmFwcC5mbGF0aXJvbnNjaG9vbC5jb20w ggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDDIrlTrfRDnF2eKFAf98HX 6oLjaEUFknuznIHSvkP+rs3VDk42SO8N3LOStsSA9jQNl/PGToRUxUF5Gu84qehE z6kANqmIGKI34SujIirk0Eku/mJcdtZXu3sMJzVqDpJhlV6i4VgIXQINK4Uk6BeB W6Ged5RO73hrQJQMC/Qg88pQ+wMVl/kVs+4RWGP+U0GitQuQCz+velMRsFFOslGI PnVpK6cAxyrtbBCL1XNYE4Po7oTP51uhbihx2OStZ6G7igI4J3+/XgxUce5VxNo2 EsSElzTMZNc84mMHN9lFnj1duoHeL2Jn8yTYdph9qNHkCA9iIg68gvuhfmhcILjV eJ95P5NAwk0djAq/x4QVtA+HqG3XIpm2P5iumQMDypQUKSDlBlJlruY7eD5XLWl5 eJ1fVIaFGZXKstpRnV6RRQco+LUR3iWig0c4v3K4xMLMh/GgLXX+O1eGYcIqX55o +quUlOgZ/rE5DENPi3mWoXmL9zApENuvKsMIomBHN+ShuS0hTJ2z1KhwwYu1Tr9z H3GMiT8uS3UwjZevlPuNXznIJqqfP9zJd6ekwLnS1YnJtxUuQofumIjtMan3Jusa DriY3GguC6FA2SrMYtLXIjJHuzc8CsxNYsPyQwk1IfGpK349XU6RCw6R+XOnL1Pd ddB5VFbprvU9ceqMFJPPcQIDAQABo4ICajCCAmYwDgYDVR0PAQH/BAQDAgWgMB0G A1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1Ud DgQWBBTYFj8St9N2yeCXtBClXj3XFwM2wzAfBgNVHSMEGDAWgBSoSmpjBH3duubR ObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9v Y3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9j ZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcvMCEGA1UdEQQaMBiCFmFwcC5mbGF0 aXJvbnNjaG9vbC5jb20wTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMB AQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggED BgorBgEEAdZ5AgQCBIH0BIHxAO8AdgB0ftqDMa0zEJEhnM4lT0Jwwr/9XkIgCMY3 NXnmEHvMVgAAAWsEH8kpAAAEAwBHMEUCIAadCkfWlnj7RYPn2LZ6EQLMBG0uGfXS RFsVWTu7GZRGAiEA++L6l3c3/HrVytzCezBf8o51YZsi0WNl0lVf4PiaFJsAdQBj 8tvN6DvMLM8LcoQnV2szpI1hd4+9daY4scdoVEvYjQAAAWsEH8iLAAAEAwBGMEQC IH2NQ66tRwFumEugJXRI8lfzpPou75anf09AGQkRBPCbAiACJKe+LEcqzc99aq2s rBvk0rprR2sjyTHV8sMc0J7ImTANBgkqhkiG9w0BAQsFAAOCAQEAQ4cB2YohKOFI r7K6u6YAwSQVuTh6BZsgNd4t/KQBos1OuFrx3HdEHNSpJZxfVolDWALqFxlyOeSL uVQmmVJiSsUYVcqp1bMuJUkA8mYt0i14gBuqnilrzW+5sJMKuhSbBRGMN5uip934 GdVD7PMiVsk3rVJMRdYWVF7NJOA15jd2O8JAoyTO8+q2B4BtVAjdJsOREBpQfmK+ i4GRsu6hjXr2lSPoTD+BuhujGYcXnurmSIGscc2Zog9FYBkE/MDmaH9FJsizy9jr +T7pbhQJoKaOI4lGFN+SJGRhoYu9MTRq0suO0qUofRA4wFNxTPBGqRnygrhDCF8b q0RQobSfbg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwyK5U630Q5xdnihQH/fB 1+qC42hFBZJ7s5yB0r5D/q7N1Q5ONkjvDdyzkrbEgPY0DZfzxk6EVMVBeRrvOKno RM+pADapiBiiN+EroyIq5NBJLv5iXHbWV7t7DCc1ag6SYZVeouFYCF0CDSuFJOgX gVuhnneUTu94a0CUDAv0IPPKUPsDFZf5FbPuEVhj/lNBorULkAs/r3pTEbBRTrJR iD51aSunAMcq7WwQi9VzWBOD6O6Ez+dboW4ocdjkrWehu4oCOCd/v14MVHHuVcTa NhLEhJc0zGTXPOJjBzfZRZ49XbqB3i9iZ/Mk2HaYfajR5AgPYiIOvIL7oX5oXCC4 1XifeT+TQMJNHYwKv8eEFbQPh6ht1yKZtj+YrpkDA8qUFCkg5QZSZa7mO3g+Vy1p eXidX1SGhRmVyrLaUZ1ekUUHKPi1Ed4looNHOL9yuMTCzIfxoC11/jtXhmHCKl+e aPqrlJToGf6xOQxDT4t5lqF5i/cwKRDbryrDCKJgRzfkobktIUyds9SocMGLtU6/ cx9xjIk/Lkt1MI2Xr5T7jV85yCaqnz/cyXenpMC50tWJybcVLkKH7piI7TGp9ybr Gg64mNxoLguhQNkqzGLS1yIyR7s3PArMTWLD8kMJNSHxqSt+PV1OkQsOkflzpy9T 3XXQeVRW6a71PXHqjBSTz3ECAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 301351264203034591510568006286291316732674 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-29 14:05:19 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-27 14:05:19 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'app.flatironschool.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 796083957668930434798818250045225291321949530213261485535603370729126992994055306632356608322806971798993362307526938207329547973374098082488302557670467812508475898751297303002003613709943015005126474013639183787028381498511023016461700651468103878980380868322255147902136506586918700103661318890033906913507214969287932260177562170184826286454165617745399238881036709558569366281223835711805543783314652931186684326521365857179446498756422665389098762613294140966567022411327441601222248030837297000079245127878465605638811792844396008973636848637135787473697490309424202770963091869164555431552545053163087062177212113097178605773451788544003945479693581329313410760018452390166283479710727366310037758109411347478938768298803442921828661789902312285945642859423792719290284495715456828824822518798443302093856599746634435567706651698769498734414207615795245573906170343594818107132607595123475059206021905493803007467673069553160248794081081170945442423395397070330248388995098924818792841337562086643029498126063947289782003558001263106997339421912128477754922126375370585664531845443023305615749479113620098381851552008165221643693301032285599026121786905250473669485447894300816763682119727482315999449422190636598074304352113 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) d8163f12b7d376c9e097b410a55e3dd7170336c3 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (26 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'app.flatironschool.com' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016b041fc92900000403004730450220069d0a47d69678fb4583e7d8b67a1102cc046d2e19f5d2445b15593bbb199446022100fbe2fa977737fc7ad5cadcc27b305ff28e75619b22d16365d2555fe0f89a149b00750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016b041fc88b000004030046304402207d8d43aead47016e984ba0257448f257f3a4fa2eef96a77f4f4019091104f09b02200224a7be2c472acdcf7d6aadacac1be4d2ba6b476b23c931d5f2c31cd09ec899 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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